Dear Paul & all-- Yes, tagged swans are likely to be Ohio's introduced population. In the early years they wore black-and-white tags, and recently yellow-and-green were used. If you can't be sure which species they are, swans with other tags could possibly be wild tundras, but more likely trumpeters introduced elsewhere. Trumps from Michigan and Ontario especially--like Ohio's they are non-migratory--can wander into Ohio. None of these trumpeters have wild pedigrees. The last wild trumpeter swan record from Ohio occurred over a century ago. It is rather cumbersome to identify birds by sending their license-plate numbers off and waiting for a response; separating these swans in the field is not the easiest of IDs, but it's worth learning, and spring and fall migrations of tundras (Mar and Nov for the most part) are the time to do so. Bill Whan Columbus Paul Dubuc wrote: > Isn't a tagged swan in Ohio more likely to be a Trumpeter? I'm not > questioning the ID, just was under the impression that most Buckeye > Trumpeters were closely monitored. > > Paul ______________________________________________________________________ Ohio-birds mailing list, a service of the Ohio Ornithological Society. Our thanks to Miami University for hosting this mailing list. Additional discussions can be found in our forums, at www.ohiobirds.org/forum/. You can join or leave the list, or change your options, at: http://listserv.muohio.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]